A case of adult endometriosis located in a hydrocele of Nuck's canal

Koichi Kubota, Tomohiro Tanaka, Shinichiro Koketsu
In: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) · 2013 · vol. 74(4) , pp. 1092–1095 · doi:10.3919/jjsa.74.1092 · W2320697899
article OA: bronze CC0 ⤵ 3 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This report details a case of adult endometriosis occurring within a hydrocele of the Nuck's canal in a 23-year-old female presenting with right inguinal pain and a palpable mass.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-08 ⓘ

The paper reports a single 23-year-old woman who presented with right groin pain during straining and had a cystic mass in the right inguinal region; CT showed a cystic lesion that was diagnosed as coexisting with a right inguinal hernia. Surgery found a dark red cyst contiguous with the hernia sac, and the hernia sac was ligated high with removal of the cyst, followed by closure of the internal inguinal ring using the Marcy method. Histopathology showed that the cyst lining was covered by mesothelial cells and had endometriosis tissue. This paper is centrally about endometriosis — it describes adult endometriosis arising within a hydrocele of Nuck’s canal, a rare extrauterine location.

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Abstract

症例は23歳，女性．怒責時の右鼠径部痛で受診された．右鼠径部に腹圧で膨隆する腫瘤を触知し圧痛を認めた．CTでは右鼠径部に嚢胞性腫瘤を認めた．右鼠径ヘルニアに併存した嚢胞と判断し手術を行った．鼠径管を開放し暗赤色の嚢胞とそれに続くヘルニア嚢を確認した．ヘルニア嚢を高位結紮して嚢胞ごと摘出しMarcy法で内鼠径輪を閉鎖した．病理組織学的所見では，嚢胞は中皮細胞により内腔を被覆された腹膜鞘状突起であり子宮内膜症の組織像を伴っていた．女性において，開存して残存した腹膜鞘状突起はNuck管と呼称され，そこに液体の貯留したものがNuck管水腫である．子宮内膜症は子宮内腔以外で子宮内膜細胞が増殖したもので，Nuck管水腫内での発生はまれである．今回われわれは，成人のNuck管水腫内に発生した子宮内膜症の症例を経験したので報告した．

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endometriosis

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last seen: 2026-06-10T17:14:06.276822+00:00
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